Associations among calcium intake, resting energy expenditure, and body fat in a multiethnic sample of children.

Academic Article

Abstract

  • OBJECTIVE: The objective was to determine if calcium intake was associated with resting energy expenditure (REE) and body fat in children after accounting for ancestral genetic background. STUDY DESIGN: Participants included 315 children. REE, body composition, and dietary calcium were assessed by indirect calorimetry, dual-energy x-ray absorptiometry, and 24-hour recalls, respectively. Structural equations modeling assessed the relationships among REE, calcium intake, and body fat. RESULTS: There were positive associations between calcium intake and REE (P<.01) and between REE and total body fat (P<.0001). There was indirect effect of calcium intake on total body fat (P<.01). There were positive associations between calcium intake and REE (P<.01), and a trend toward an association of calcium intake and total body fat (P=.065) among boys only, whereas the only significant relationship among girls was an association of REE on total body fat (P<.0001). CONCLUSIONS: REE was associated with calcium intake and mediated a relationship between calcium intake and total body fat. These findings suggest calcium intake may play a role in fat accumulation and energy balance through its effects on REE, especially in boys.
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    Keywords

  • Adipose Tissue, African Americans, Calcium, Dietary, Child, Energy Metabolism, European Continental Ancestry Group, Female, Hispanic Americans, Humans, Male, Rest
  • Digital Object Identifier (doi)

    Author List

  • Hanks LJ; Casazza K; Willig AL; Cardel MI; Beasley TM; Fernandez JR
  • Start Page

  • 473
  • End Page

  • 478
  • Volume

  • 157
  • Issue

  • 3